Duefgrin stole a pair of burst thrusters to be used in the building of a homemade missile to be targeted, under the leadership of Filvian (working under the direction of Kinman Doriana), against the Barlok negotiators. He passed the thrusters to fellow Brolf conspirator Jhompfi, who, in turn, passed them off to Migress.

Other items the young Brolfi conspirators collected for the missile construct were explosives, a stabilization system, and alloy packing cylinders.

Duefgrin wore a red vest with many pockets, in which he carried most of his possessions, and was a mechanical enthusiast who habitually stole what he needed for his projects.